KEY POINTS
  • Oaktree's Howard Marks says he's concerned about the increasing anti-capitalism sentiment he's seeing in American politics.
  • In a memo to clients, he specifically calls out Democrats' proposals to tax the wealthy.
  • While there should be a safety net for those who aren't succeeding, "we shouldn't throw out the system," he says.

Billionaire investor Howard Marks said he's worried about an increasing sentiment taking hold in American politics.

"There is a rising tide of anti-capitalism and we should be concerned about that," the co-chairman of Oaktree Capital said Thursday on CNBC's "Fast Money: Halftime Report."